Combined cream-separator and churn.



PATENTED MAR. 31, 1903.

' w. rsmmsn'w. COMBINED CREAM SEPAEATOR AND 011mm,

AI PLIOAT ION FILED) NET. 16. 1902.

2 SHEETS-SHEET l no MODEL.

' IVITHVESSES.

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PATENTED MARLBI, 1903.,

2 SEEETS-SBEET 2.

W. FERGUSON. I COMBINED CREAM SEPARATOR AND CHURN.

APPLICATION FILED 0012 16. 1902.

H0 MODEL.

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WITNESSES UNTTED STATES PAT NT OFFICE.

\VILLIAM FERGUSON, OF CASS CITY, MICHIGAN.

COMBINED CREAM-SEPARATOR AND CHURN.

SPECIFICATION forming part of Letters Patent No. 723,851, datedMarch 31,1903. Application filed October 16,1902. Serial No. 127,459. (No model.)

citizen of the United States of America, re-

siding at Cass City, in the county of Tuscola and State of Michigan,have invented certain new and useful Improvements in a Cream- Separatorand Churn Combined, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to an improved combined cream-separator andchurn; and its object is to provide a receptacle for the milk which isso arranged Within an outer coolingtank that the cooling medium willhave free access to all sides of the receptacle or can, and at the sametime the contents of said milk-can may be seen through sight-glasses inthe side thereof and free access had to both can and tank.

It is also an object of this invention to so construct a strainer to besupported within the upper end of the can that the milk will be directedin small streams outward against the sides of the can and be thoroughlycooled as it spreads out and runs down thereon and at the same time willbe aerated by the current of air and vapor passing upward between theside of the can and strainer.

A further object of this invention is to provide an agitator which maybe readily detached when not in use and the operating mechanism of whichis so constructed and secured to a suitable support hinged to the framethat it may be turned out of the way to give free access to the can; andit is also an object of this invention to provide convenient andeasily-operated mechanism for imparting a reciprocating rotary motion tothe agitator and to provide the device with certain other new and usefulfeatures, all as hereinaftermore fully described, and particularlypointed out in the claim, reference being had to the accompanyingdrawings, in which Figure 1 is a front elevation of a device embodyingmyinvention; Fig. 2, a longitudinal vertical section of the same on.theline 2 2 of Fig. 1; Fig. 3, a plan view; Fig. at, a transverse section,on line 4: 4 of Fig. 2; Fig. 5, a detail showing the upper end of thedevice in section with the agitator removed, the op erating mechanismthrown back, and the strainer, also in section, placed in positionwithin the top of the can; and Fig. 6 is an enlarged detail showing theoperating mechanism in section.

A is a suitable frame, B a rectangular tank supported thereon, and C acylindrical tank or can secured within the rectangular-or cooling tank,with one side adjacent to the end Wall E of said tank, which wall is cutaway opposite the sight-glasses C of the can and the wall carried inaround the openings to make a water-tight connection between the Wall Eand the can around the sight-glasses. The tank is provided with a topthrough which the npperend of the can projects and in which is anopening closed by a cover B and faucets B C are provided in the bottomof the tank and can, respectively, to draw 0E their contents.

The tank B is filled with cold water or ice and water, and when the canC has become sufficiently cooled thereby the strainer D (shown in Fig.5) is placed in the top of the can and the warm milk poured into it.This strainer consists of a vertical wall or side D' .of a diameter lessthan the diameter of the can, so that when suspended within the top ofthe can by the hooks D which are secured to the strainer, there will beleft a space between the side of the strainer and the can, and a conicalbottom D directs the milk toward the. angle formed by the meeting of thebottom and side, through which side is a row of, s1nall openings D toallow the milk to es cape laterally in thin streams, a strip ofwirecloth D being secured across the angle over the openings, throughwhich cloth the milk is strained before reaching the openings, so thatsaid openings will not become clogged. The number and size of theseopenings determine the rapidity with which the milk will be strained,and they direct the milk in small streams against the cold sides of thecan, down which it flows, thus very rapidly cooling the milk and causingthe cream to soon separate therefrom. The space aroupd the strainerallows the air and vapor to pass out, and on entering the space itpasses through the streams of milk issuing from the openings, and th usaids in cooling and aerates the milk. When a sufficient quantity ofcream has been accumulated for a churning,

the agitator E, consisting of a post E, provided with blades E foragitating the cream, is placed in the can, with its center pin E in thesocket E, provided therefor in the axis of the can-bottom, and the creampoured in. A co er F, having an axial opening through which the upperend of the post E extends, is placed on the can and the mechanism forturning the agitator connected thereto by turning the frame G, which ispivoted to the machine-frame at G, to bring the squared and taperedsocket H on the end of the vertical driver-shaft I-I into engagementwith the upper tapered end E of the agitator-post. The pivoted frame Gis provided with a transverse hoard G through an opening in whichextends the shaft H and to the upper side of which is secured the plateI, having a boss I raised around the opening for the shaft, said bossbeing provided with a shoulder 1 to support the gear J, which is cuppedout at its under side to fit over the upper end of the boss I and turnthereon. Said gear is provided with a hub portion J, having a squaredopening to receive the squared end of the shaft ll, to which it issecured by a key passed through a hole in the projecting end of saidshaft. Integral with the plate I and inclosing the gear with its endsadjacent to the sector is an upwardly-extending wall forming ashield toprevent anything from getting in between the gear and sector. The plateI is also provided with an upwardlyextending pivotpin K, and pivoted toturn on this pin is a horizontally-extending sector K in engagement withthe pinion and provided with a. horizontally-extending operating-handleK for turning the sector on its pivot to rotate the pinion and agitator,said handle being extended some distance beyond i s pivot to give anincreased leverage. Stops K on the ends of the sector are provided toengage the plate and limit the movement of the sector.

By mounting the gear J upon the boss I, through which the shaft IIpasses loosely, the bearingmay be oiled without danger of getting oilinto the can, an oil-hole being provided in the gear, and by providing atapered socket on said shaft to receive a tapered end on theagitator-post the driving mechanism may be easily and quickly detachedfrom the agitator and thrown back, as shown in Fig. 5, to give freeaccess to the can.

Moving the handle K back and forth iniparts a rotary motion first in onedirection and then the otheror a reciprocating rotary motion to theagitator which thoroughly stirs the cream and soon causes the butter toseparate therefrom.

Having thus fully described my invention, what I claim is- Thecombination with the supportingframe; of a rectangular cooling-tank Bprovided with an opening in its top, a cylindrical can 0 secured withinsaid tank with its side wall in proximity to the wall of the tank andprojecting outward through the top of the same, a removable top F forthe can provided with an axial opening, an agitator E having its upperend extending upward through the opening in the cover and tapered, ahinged frame G, a plate I having a hollow boss and secured to the hingedframe, a shaft 11 extending through said hollow boss and provided with asocket II, a gear J secured to the shaft, a shield on the platepartially inclosing the gear, a sector K pivoted on a pin on the plateand provided with a handle, and stops K on the ends of the sector,substantially as described.

In testimony whereof I aifix my signature in presence of two witnesses.

WILLIAM FERGUSON.

\Vitnesses:

H. S. WICKWARE, D. A. FREEMAN.

